privateloader | 8e211c595ba97a040622063a7fc3482eb53d6e577c959bde51e7f319a27a8b53

General

Target

setup.exe
Size

709.0MB
MD5

cffa59bdc566b21e6f3b7bbd7d1b943a
SHA1

7319cf3c26228d14c6fb4495519cef5df4cb05ac
SHA256

99a35657f5582f935c761d1b5f6d9b9c859b017bca9178b06231f2b5ce0eeec6
SHA512

48b0f52a6c707efa938ef8f983e6043946b4c748e1dcb7a9aa0f4668a3fda4015ab8691791421f24c53afb5cc384788465bca2168de62c398ce3244b78308a7a
SSDEEP

98304:tw3DAfSsGlM8u5FJSGIfheKutJtjovjuY1uXoY7CQ:MySsGiHrKuJkL6x

Score

10^/10

privateloader defense_evasion loader themida trojan

Malware Config

Signatures

Modifies firewall policy service 3 TTPs 1 IoCs

defense_evasion

Modify Registry

T1112

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\FirewallRules\C:\ = "1"	setup.exe

PrivateLoader
PrivateLoader is a downloader sold as a pay-per-install malware distribution service.
loader privateloader
Privateloader family
privateloader

Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs

defense_evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	setup.exe

Checks BIOS information in registry 2 TTPs 2 IoCs

BIOS information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	setup.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	setup.exe

Themida packer 8 IoCs

Detects Themida, an advanced Windows software protection system.

themida

resource	yara_rule
behavioral1/memory/1732-0-0x00007FF661D40000-0x00007FF662813000-memory.dmp	themida
behavioral1/memory/1732-1-0x00007FF661D40000-0x00007FF662813000-memory.dmp	themida
behavioral1/memory/1732-9-0x00007FF661D40000-0x00007FF662813000-memory.dmp	themida
behavioral1/memory/1732-8-0x00007FF661D40000-0x00007FF662813000-memory.dmp	themida
behavioral1/memory/1732-10-0x00007FF661D40000-0x00007FF662813000-memory.dmp	themida
behavioral1/memory/1732-11-0x00007FF661D40000-0x00007FF662813000-memory.dmp	themida
behavioral1/memory/1732-19-0x00007FF661D40000-0x00007FF662813000-memory.dmp	themida
behavioral1/memory/1732-23-0x00007FF661D40000-0x00007FF662813000-memory.dmp	themida

Checks whether UAC is enabled 1 TTPs 1 IoCs

defense_evasion trojan

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	setup.exe

Drops file in System32 directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Windows\System32\GroupPolicy	setup.exe
File opened for modification	C:\Windows\System32\GroupPolicy\gpt.ini	setup.exe
File created	C:\Windows\System32\GroupPolicy\Machine\Registry.pol	setup.exe
File opened for modification	C:\Windows\System32\GroupPolicy\GPT.INI	setup.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
1732	setup.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\logs\StorGroupPolicy.log	svchost.exe

C:\Users\Admin\AppData\Local\Temp\setup.exe
"C:\Users\Admin\AppData\Local\Temp\setup.exe"
1⤵
- Modifies firewall policy service
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Checks whether UAC is enabled
- Drops file in System32 directory
- Suspicious use of NtSetInformationThreadHideFromDebugger
PID:1732

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -p -s fhsvc
1⤵
PID:4304

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -s WPDBusEnum
1⤵
- Drops file in Windows directory
PID:692

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Create or Modify System Process

1

T1543

Windows Service

1

T1543.003

Privilege Escalation

Create or Modify System Process

1

T1543

Windows Service

1

T1543.003

Defense Evasion

Impair Defenses

1

T1562

Disable or Modify System Firewall

Modify Registry

Virtualization/Sandbox Evasion

1

T1497

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Virtualization/Sandbox Evasion

1

T1497

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\System32\GroupPolicy\gpt.ini

Filesize
127B

MD5
8ef9853d1881c5fe4d681bfb31282a01

SHA1
a05609065520e4b4e553784c566430ad9736f19f

SHA256
9228f13d82c3dc96b957769f6081e5bac53cffca4ffde0ba1e102d9968f184a2

SHA512
5ddee931a08cfea5bb9d1c36355d47155a24d617c2a11d08364ffc54e593064011dee4fea8ac5b67029cab515d3071f0ba0422bb76af492a3115272ba8feb005

Download Submit
memory/1732-10-0x00007FF661D40000-0x00007FF662813000-memory.dmp

Filesize
10.8MB

Download
memory/1732-7-0x00007FF9D0F70000-0x00007FF9D102D000-memory.dmp

Filesize
756KB

Download
memory/1732-6-0x00007FF9D0F8B000-0x00007FF9D0F8C000-memory.dmp

Filesize
4KB

Download
memory/1732-9-0x00007FF661D40000-0x00007FF662813000-memory.dmp

Filesize
10.8MB

Download
memory/1732-8-0x00007FF661D40000-0x00007FF662813000-memory.dmp

Filesize
10.8MB

Download
memory/1732-0-0x00007FF661D40000-0x00007FF662813000-memory.dmp

Filesize
10.8MB

Download
memory/1732-1-0x00007FF661D40000-0x00007FF662813000-memory.dmp

Filesize
10.8MB

Download
memory/1732-11-0x00007FF661D40000-0x00007FF662813000-memory.dmp

Filesize
10.8MB

Download
memory/1732-19-0x00007FF661D40000-0x00007FF662813000-memory.dmp

Filesize
10.8MB

Download
memory/1732-20-0x00007FF9D0F70000-0x00007FF9D102D000-memory.dmp

Filesize
756KB

Download
memory/1732-23-0x00007FF661D40000-0x00007FF662813000-memory.dmp

Filesize
10.8MB

Download
memory/1732-24-0x00007FF9D0F70000-0x00007FF9D102D000-memory.dmp

Filesize
756KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads